单项选择题Routers A and B have an OC12c and a GE link between them and are running OSPF over both ofthese links. Which statement is correct, assuming the default JUNOS software OSPF metric calculation?()
A. There are two equal cost paths between a and b.
B. The ge link is the preferred path between a and b.
C. The oc12c link is the preferred path between a and b.
D. Manual metric assignment must be configured to determine the outcome